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| 1. | the doctrine that pleasure or happiness is the highest good. |
| 2. | devotion to pleasure as a way of life: The later Roman emperors were notorious for their hedonism. |
In ethics, the doctrine that pleasure or happiness is the highest good in life. Some hedonists, such as the Epicureans, have insisted that pleasure of the entire mind, not just pleasure of the senses, is this highest good.